Frog-bit invasion threatens Michigan water plants

Nov. 10, 2013

Written by

Associated Press

The Department of Natural Resources says European frog-bit has been spotted in Saginaw Bay, Alpena and Chippewa County’s Munuscong Bay. Until recently, the free-floating aquatic plant had been reported only in a few sites in the southeastern Lower Peninsula.

European frog-bit was released accidentally into Canadian waters in the 1930s. It has spread across Ontario and the Northeastern U.S.

It forms dense vegetative mats that cover the available open water surface.